Watch the video of this game being played. Can you work out the rules? Which dice totals are good to get, and why?
Four bags contain a large number of 1s, 3s, 5s and 7s. Can you pick any ten numbers from the bags so that their total is 37?
A hundred square has been printed on both sides of a piece of paper. What is on the back of 100? 58? 23? 19?
What is the greatest number of squares you can make by overlapping three squares?
To celebrate NRICH's 25th birthday, why not play this special version of our classic game, Got It? Can you devise a strategy so that you will always win?
Nim-7 game for an adult and child. Who will be the one to take the last counter?
This task encourages you to investigate the number of edging pieces and panes in different sized windows.
Can you find all the ways to get 15 at the top of this triangle of numbers? Many opportunities to work in different ways.
